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A067276
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Determinant of n X n matrix containing the first n^2 primes in increasing order.
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15
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2, -1, -78, 880, -4656, -14304, -423936, 8342720, 711956736, -615707136, 21057138688, -4663930678272, 211912980656128, -9178450735677440, 40005919124799488, 83013253447139328, -8525111273818357760, -800258888289188708352, -15170733077495639179264
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OFFSET
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1,1
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COMMENTS
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The first column contains the first n primes in increasing order, the second column contains the next n primes in increasing order, etc. Equivalently, first row contains first n primes in increasing order, second row contains next n primes in increasing order, etc. Sequences of determinants of matrices specifically containing primes include A024356 (Hankel matrix), A067549 (first n primes on diagonal, other elements 1), A066933 (cyclic permutations of first n primes in each row) and A067551 (first n primes on diagonal, other elements 0).
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LINKS
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EXAMPLE
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a(3) = -78 because det[[2,7,17],[3,11,19],[5,13,23]] = -78 (= det[[2,3,5],[7,11,13],[17,19,23]], the determinant of the transpose.).
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MAPLE
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seq(LinearAlgebra:-Determinant(Matrix(n, n, (i, j) -> ithprime(n*(i-1)+j))), n=1..20); # Robert Israel, Jul 12 2017
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MATHEMATICA
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Table[ Det[ Partition[ Array[Prime, n^2], n]], {n, 19}] (* Robert G. Wilson v, May 26 2006 *)
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PROG
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(PARI) for(n=1, 20, k=0; m=matrix(n, n, x, y, prime(k=k+1)); print1(matdet(m), ", ")) /* The matrix initialization command above fills columns first: Variables (such as) x and y take on values 1 through n for rows and columns, respectively, with x changing more rapidly and they must be specified even though the 5th argument is not an explicit function of them here. */
(Magma) [ Determinant( Matrix(n, n, [ NthPrime(k): k in [1..n^2] ]) ): n in [1..19] ]; // Klaus Brockhaus, May 12 2010
(Python)
from sympy.matrices import Matrix
from sympy import sieve
def a(n):
sieve.extend_to_no(n**2)
return Matrix(n, n, sieve[1:n**2+1]).det()
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CROSSREFS
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KEYWORD
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easy,sign
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AUTHOR
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STATUS
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approved
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